阅读说明：本技术 医疗器械的保护套及其安装方法与喉罩及其组装方法 (Protective sleeve of medical instrument and mounting method thereof, laryngeal mask and assembling method thereof ) 是由 林必盛 林家莹 林家龙 于 2018-07-27 设计创作，主要内容包括：本发明是关于一种医疗器械的保护套及其安装方法与喉罩及其组装方法,保护套包含两套筒部,两套筒部一端相接,另一端为开口,且开口面积小于医疗器械；安装时,将其中一套筒部拉撑套设于医疗器械外,接着将另一套筒部反折,并拉撑套设于第一层套筒部外,由此仅需单一物品便可达到双层保护,如此安全且方便使用；通过使内径较小的两套筒部拉撑套设,且第二层套筒部套设于第一层套筒部外,以确保与医疗器械的密合度,以免影响医疗器械使用及避免气体进入；而通过保护套形成喉罩的气囊,不仅可通过双层保护避免漏气,也方便于喉罩使用后替换而免于消毒。(The invention relates to a protective sleeve of a medical instrument and an installation method thereof, a laryngeal mask and an assembly method thereof, wherein the protective sleeve comprises two sets of cylinder parts, one ends of the two sets of cylinder parts are connected, the other ends of the two sets of cylinder parts are provided with openings, and the area of the openings is smaller than that of the medical instrument; when the medical device is installed, one sleeve part is pulled, expanded and sleeved outside the medical device, the other sleeve part is folded reversely and pulled, expanded and sleeved outside the first layer of sleeve part, and therefore double-layer protection can be achieved only by a single article, and the medical device is safe and convenient to use; the two sleeve parts with smaller inner diameters are pulled, braced and sleeved, and the second layer of sleeve parts are sleeved outside the first layer of sleeve parts, so that the tightness between the second layer of sleeve parts and the medical instrument is ensured, the use of the medical instrument is prevented from being influenced, and gas is prevented from entering the second layer of sleeve parts; the air bag of the laryngeal mask is formed by the protective sleeve, so that air leakage can be avoided through double-layer protection, and the laryngeal mask can be replaced conveniently after being used to avoid disinfection.)

1. A protective sheath for a medical device, the protective sheath configured to be disposed over a medical device, the protective sheath comprising:

the protective sleeve body is made of elastic materials and comprises a first sleeve part and a second sleeve part, one end of the first sleeve part is connected with one end of the second sleeve part, the other end of the first sleeve part, opposite to the second sleeve part, is provided with an opening, the area of the opening of the first sleeve part is smaller than the area of the medical instrument for sleeving, the other end of the second sleeve part, opposite to the first sleeve part, is provided with an opening, and the area of the opening of the second sleeve part is smaller than the area of the medical instrument for sleeving.

2. The protective sheath of claim 1, wherein a passage is formed through the joint of the first sleeve portion and the second sleeve portion, the passage communicating the interior space of the first sleeve portion and the interior space of the second sleeve portion.

3. The protective sheath of a medical device of claim 1, wherein a junction of the first sheath portion and the second sheath portion is offset from a center of the first sheath portion and a center of the second sheath portion.

4. The medical device sheath of claim 1, wherein the outer wall of the first sleeve portion has at least one first annular rib formed around the outer wall of the first sleeve portion, the at least one first annular rib being adjacent to the opening of the first sleeve portion.

5. The protective sheath of a medical device as claimed in claim 1, wherein the outer wall surface of the junction of the first sheath portion and the second sheath portion is formed with at least one connecting ring rib around the projection.

6. The protective sheath according to claim 1, wherein a plurality of first inner long ribs are formed on an inner wall surface of the first sheath portion in a protruding manner, and an extending direction of the first inner long ribs is parallel to a line connecting the first sheath portion and the second sheath portion.

7. The protective sheath according to claim 1, wherein a plurality of first outer long ribs are formed on the outer wall surface of the first sheath portion in a protruding manner, and the extending direction of the first outer long ribs is parallel to the line connecting the first sheath portion and the second sheath portion.

8. The protective sheath of a medical device of claim 1, wherein the wall thickness of the first sheath portion increases from the junction of the first sheath portion and the second sheath portion toward the opening of the first sheath portion.

9. The protective sheath of a medical device of claim 1, wherein a length of the first sheath portion along a line connecting the first sheath portion and the second sheath portion is greater than a length of the second sheath portion along a line connecting the first sheath portion and the second sheath portion.

10. The protective sheath of medical device of claim 2, further comprising a tube inserted into the second sheath portion from the opening of the second sheath portion, and inserted into the first sheath portion through the passage of the protective sheath body.

11. The medical device sheath of claim 10, wherein the junction of the first sleeve portion and the second sleeve portion is configured to tightly secure the tubular body.

12. The medical instrument sheath of claim 1, further comprising a tube inserted into the first sleeve portion and penetrating the wall surface of the first sleeve portion to pass through the first sleeve portion.

13. A protective sheath for a medical device as recited in claim 1, wherein the wall of the first sleeve portion has a raised point protruding therefrom.

14. The protective sheath of claim 1, further comprising two fixing rings respectively coupled to the periphery of the opening of the first sleeve portion and the periphery of the opening of the second sleeve portion, wherein the two fixing rings are made of elastic material and have a shape corresponding to the outer contour of the medical device.

15. The protective sheath of claim 1, further comprising an auxiliary tube passing through the first sheath portion of the protective sheath body and opening the first sheath portion.

16. The protective sheath of a medical device of claim 15, wherein the auxiliary tube includes a paper roll disposed through the first sleeve portion of the protective sheath body and configured to stretch the first sleeve portion; the paper roll is formed by spirally winding a long paper strip, and one end of the long paper strip, which is positioned at the innermost side of the spiral shape, penetrates through the first sleeve part.

17. The protective sheath of claim 16, wherein the auxiliary tube further comprises a wire body wound around and fixed to the outside of the paper roll and spirally wound around the outer wall surface of the long paper strip along with the long paper strip of the paper roll.

18. A method of installing a protective sheath for a medical device, comprising the steps of:

preparing a protective sleeve body, wherein the protective sleeve body is made of elastic materials and comprises a first sleeve part and a second sleeve part, one end of the first sleeve part is connected with one end of the second sleeve part, the other end of the first sleeve part, which is opposite to the second sleeve part, is provided with an opening, and the other end of the second sleeve part, which is opposite to the first sleeve part, is provided with an opening;

the first sleeve part of the protective sleeve body is sleeved outside a medical instrument after being stretched, and then the first sleeve part is recovered to the volume and is covered and attached outside the medical instrument; and then, after the second sleeve part is reversely folded and pulled, the second sleeve part is sleeved outside the first sleeve part, and the second sleeve part recovers the volume and is covered and attached to the outside of the first sleeve part.

19. The method of installing a protective sheath of a medical device of claim 18, wherein the second sheath portion is folded back and wrapped around the first sheath portion, and then water is pumped into the body of the sheath and the body of the sheath is inflated.

20. The method of installing a protective sheath of a medical device as recited in claim 19, further comprising providing a tube inserted into the first sheath portion of the sheath body; and after the second sleeve part is reversely folded and coated to be attached to the outside of the first sleeve part, water is pumped between the medical instrument and the first sleeve part from the pipe body.

21. The method of installing a protective sheath of a medical device as recited in claim 18, wherein the second sheath portion is folded back and wrapped around the first sheath portion, and the body of the sheath is evacuated to force the body of the sheath against the exterior of the medical device.

22. The method of installing a protective sheath of a medical device as recited in claim 21, further comprising providing a tube inserted into the first sheath portion of the sheath body; and after the second sleeve part is reversely folded and coated and attached to the outside of the first sleeve part, air is pumped between the medical instrument and the first sleeve part from the pipe body.

23. The method of claim 18, wherein the joint between the first sleeve portion and the second sleeve portion is moved beyond an end of the medical device before the second sleeve portion is invaginated and tensioned, and the second sleeve portion is invaginated outside the first sleeve portion.

24. The method of installing a sheath of a medical device according to claim 18, wherein two fixing rings are further provided, which are respectively coupled to a periphery of the opening of the first sheath portion and a periphery of the opening of the second sheath portion, the two fixing rings being made of an elastic material, and the shapes of the two fixing rings corresponding to the outer peripheral profile of the medical device for sheathing;

when the first sleeve part of the protective sleeve body is sleeved outside the medical instrument, the fixing ring on the first sleeve part is sleeved and clamped on the medical instrument; when the first sleeve part of the protective sleeve body is sleeved outside the second sleeve part, the fixing ring on the second sleeve part is sleeved and clamped on the medical instrument in the first sleeve part.

25. A laryngeal mask, comprising:

an air inlet pipe;

the external expansion part is arranged at one end of the air inlet pipe, and a vent communicated with the air inlet pipe is formed in the external expansion part;

a protective sleeve body, which is sleeved outside the air inlet pipe and the outward-expanding part, is made of elastic material and comprises a first sleeve part and a second sleeve part, one end of the first sleeve part is connected with one end of the second sleeve part, and the other end of the first sleeve part, which is opposite to the second sleeve part, is an opening; a passage is formed at the joint of the first sleeve part and the second sleeve part in a penetrating way, and the passage is communicated with the inner space of the first sleeve part and the inner space of the second sleeve part;

the first sleeve part is reversely folded along the reverse folding ring and is divided into a cladding part and a reverse folding part by taking the reverse folding ring as a boundary, and the cladding part is connected with the second sleeve part;

the passage is sleeved outside the air inlet pipe, the coating part is sleeved outside the outward expansion part, the reverse folding part is sleeved outside the coating part, and the reverse folding ring is positioned outside the air vent of the outward expansion part.

26. The laryngeal mask of claim 25, further comprising a tube that extends through the reverse-folded portion and between the reverse-folded portion and the covering portion.

27. The laryngeal mask of claim 26, wherein a protrusion protrudes from the reverse-folded portion, and the tube extends through the protrusion and into the space between the reverse-folded portion and the covering portion.

28. The laryngeal mask of claim 25, wherein the second sleeve portion is partially folded back towards the first sleeve portion and is sleeved outside the folded back portion of the first sleeve portion.

29. The laryngeal mask of claim 28, further comprising a tube that extends through the second sleeve portion and the reverse-folded portion and that extends between the reverse-folded portion and the covering portion; a salient point protrudes from the second sleeve part, and the pipe body penetrates through the salient point.

30. A method of assembling a laryngeal mask, comprising the steps of:

preparing a protective sleeve body, an air inlet pipe, an outward expansion part and a reverse folding ring; the protective sleeve body is made of elastic materials and comprises a first sleeve part and a second sleeve part, one end of the first sleeve part is connected with one end of the second sleeve part, the other end of the first sleeve part, which is opposite to the second sleeve part, is provided with an opening, and the other end of the second sleeve part, which is opposite to the first sleeve part, is provided with an opening; the external expansion part is arranged at one end of the air inlet pipe, and a vent communicated with the air inlet pipe is formed in the external expansion part;

sleeving the protective sleeve body outside the air inlet pipe, sleeving the first sleeve part outside the outward-expanding part in a sleeving manner, sleeving a reverse-folding ring outside the first sleeve part, and reversely folding the first sleeve part along the reverse-folding ring, wherein the part of the first sleeve part sleeved on the outward-expanding part is a coating part, the part of the first sleeve part reversely folded along the reverse-folding ring is a reverse-folding part, and after the first sleeve part is reversely folded, the reverse-folding part is sleeved outside the coating part in a sleeving manner;

finally, air is pumped between the coating part and the reverse folding part of the first sleeve part to form an air bag.

31. The method of claim 30, further comprising providing a tube extending through the reverse-folded portion and between the reverse-folded portion and the covering portion, and inflating the space between the reverse-folded portion and the covering portion through the tube.

32. The method of assembling a laryngeal mask according to claim 30, wherein after the first sleeve portion is folded back, the second sleeve portion is folded back towards the first sleeve portion and is sleeved outside the folded back portion of the first sleeve portion.

Technical Field

The invention relates to a protective sleeve of a medical instrument and an installation method thereof, in particular to a protective sleeve of an ultrasonic probe, a laryngoscope, an enteroscope, an endoscope or a laryngeal mask and an installation method thereof, and a laryngeal mask of an air bag formed by the protective sleeve and an assembly method of the laryngeal mask.

Background

Disclosure of Invention

In view of the foregoing disadvantages and drawbacks of the prior art, the present invention provides a protective cover for a medical device, which can provide a double-layered protection for the medical device by a simple installation method, can be attached to the medical device, and has a low cost, and can be used as a replaceable balloon for a laryngeal mask, thereby being convenient to use, and a method of installing the same, and a laryngeal mask and a method of assembling the same.

In order to achieve the above object, the present invention provides a protective cover for a medical device, the protective cover being adapted to be fitted over the medical device and comprising:

the protective sleeve body is made of elastic materials and comprises a first sleeve part and a second sleeve part, one end of the first sleeve part is connected with one end of the second sleeve part, the other end of the first sleeve part, opposite to the second sleeve part, is provided with an opening, the area of the opening of the first sleeve part is smaller than the area of the medical instrument for sleeving, the other end of the second sleeve part, opposite to the first sleeve part, is provided with an opening, and the area of the opening of the second sleeve part is smaller than the area of the medical instrument for sleeving.

In order to achieve the above object, the present invention further provides a method for installing a protective sheath of a medical device, comprising the steps of:

preparing a protective sleeve body, wherein the protective sleeve body is made of elastic materials and comprises a first sleeve part and a second sleeve part, one end of the first sleeve part is connected with one end of the second sleeve part, the other end of the first sleeve part, which is opposite to the second sleeve part, is provided with an opening, and the other end of the second sleeve part, which is opposite to the first sleeve part, is provided with an opening;

the first sleeve part of the protective sleeve body is sleeved outside a medical instrument after being stretched, and then the first sleeve part is recovered to the volume and is covered and attached outside the medical instrument; and then, after the second sleeve part is reversely folded and pulled, the second sleeve part is sleeved outside the first sleeve part, and the second sleeve part recovers the volume and is covered and attached to the outside of the first sleeve part.

The invention has the advantages that the double-layer protection effect can be achieved only by simple operation (the second sleeve part is folded after the first sleeve part is sleeved and sleeved once again), so that even if the second sleeve part on the outer layer is broken due to various reasons, the first sleeve part on the inner layer still can protect medical instruments, thus improving the safety and avoiding the medical instruments from being polluted; moreover, double-layer protection can be achieved only by a single article, and two sleeves are not required to be used for repeatedly sleeving twice, so that the operation and the use are convenient; furthermore, the two sleeve parts which are made of elastic materials and have smaller inner diameters are sleeved outside the medical instrument in a stretching manner, so that the fitting effect can be achieved, the second sleeve part is sleeved outside the first sleeve part after being folded back, and the first sleeve part can be pressed tightly to be tightly attached to the medical instrument, so that the tightness between the protective sleeve body and the medical instrument is ensured, the use of the medical instrument (such as the imaging of an ultrasonic probe) is prevented from being influenced, gas is prevented from entering between the medical instrument and the protective sleeve body, and the like; the invention is convenient to use, effectively improves the safety and the tightness, and greatly reduces the cost compared with the disinfection and disposable method in the prior art.

To achieve the above object, the present invention further provides a laryngeal mask with a cuff forming a balloon, comprising:

an air inlet pipe;

the external expansion part is arranged at one end of the air inlet pipe, and a vent communicated with the air inlet pipe is formed in the external expansion part;

a protective sleeve body, which is sleeved outside the air inlet pipe and the outward-expanding part, is made of elastic material and comprises a first sleeve part and a second sleeve part, one end of the first sleeve part is connected with one end of the second sleeve part, and the other end of the first sleeve part, which is opposite to the second sleeve part, is an opening; a passage is formed at the joint of the first sleeve part and the second sleeve part in a penetrating way, and the passage is communicated with the inner space of the first sleeve part and the inner space of the second sleeve part;

the first sleeve part is reversely folded along the reverse folding ring and is divided into a cladding part and a reverse folding part by taking the reverse folding ring as a boundary, and the cladding part is connected with the second sleeve part;

the passage is sleeved outside the air inlet pipe, the coating part is sleeved outside the outward expansion part, the reverse folding part is sleeved outside the coating part, and the reverse folding ring is positioned outside the air vent of the outward expansion part.

To achieve the above object, the present invention further provides a method for assembling a laryngeal mask with a cuff forming a balloon, comprising:

preparing a protective sleeve body, an air inlet pipe, an outward expansion part and a reverse folding ring; the protective sleeve body is made of elastic materials and comprises a first sleeve part and a second sleeve part, one end of the first sleeve part is connected with one end of the second sleeve part, the other end of the first sleeve part, which is opposite to the second sleeve part, is provided with an opening, and the other end of the second sleeve part, which is opposite to the first sleeve part, is provided with an opening; the external expansion part is arranged at one end of the air inlet pipe, and a vent communicated with the air inlet pipe is formed in the external expansion part;

sleeving the protective sleeve body outside the air inlet pipe, sleeving the first sleeve part outside the outward-expanding part in a sleeving manner, sleeving a reverse-folding ring outside the first sleeve part, and reversely folding the first sleeve part along the reverse-folding ring, wherein the part of the first sleeve part sleeved on the outward-expanding part is a coating part, the part of the first sleeve part reversely folded along the reverse-folding ring is a reverse-folding part, and after the first sleeve part is reversely folded, the reverse-folding part is sleeved outside the coating part in a sleeving manner;

finally, air is pumped between the coating part and the reverse folding part of the first sleeve part to form an air bag.

When the laryngeal mask is used, only the air pipe sleeve is sleeved outside the air inlet pipe, and the protective sleeve body is sleeved outside the air pipe sleeve, so that after the laryngeal mask is used, only the protective sleeve body and the air pipe sleeve which are used as the air bag are replaced.

Preferably, the protective sleeve of the medical device, wherein a passage is formed at a connection portion of the first sleeve portion and the second sleeve portion, and the passage communicates an inner space of the first sleeve portion and an inner space of the second sleeve portion.

Preferably, the protective sleeve of the medical device, wherein the joint of the first sleeve part and the second sleeve part is offset from the center of the first sleeve part and the center of the second sleeve part.

Preferably, the protective sleeve of the medical device, wherein the outer wall surface of the first sleeve portion is formed with at least one first ring rib around the protruding portion, and the at least one first ring rib is adjacent to the opening of the first sleeve portion.

Preferably, the protective sleeve of the medical device, wherein the outer wall surface of the joint of the first sleeve part and the second sleeve part is formed with at least one connecting ring rib around the protrusion.

Preferably, the protective cover for a medical instrument is configured such that a plurality of first inner long ribs are formed to protrude from an inner wall surface of the first sleeve portion, and an extending direction of the first inner long ribs is parallel to a line connecting the first sleeve portion and the second sleeve portion.

Preferably, the protective cover of the medical device, wherein a plurality of first outer long ribs are formed on the outer wall surface of the first sleeve part in a protruding manner, and the extending direction of the first outer long ribs is parallel to the connecting line of the first sleeve part and the second sleeve part.

Preferably, the protective sheath of the medical device, wherein the wall thickness of the first sleeve part increases from the junction of the first sleeve part and the second sleeve part towards the opening of the first sleeve part.

Preferably, the length of the first sleeve part along a connecting line of the first sleeve part and the second sleeve part is greater than the length of the second sleeve part along a connecting line of the first sleeve part and the second sleeve part.

Preferably, the protective sheath of the medical device further includes a tube body, and the tube body is inserted into the second sheath portion from the opening of the second sheath portion, and penetrates through the passage of the protective sheath body, and is inserted into the first sheath portion.

Preferably, the protective sleeve of the medical device, wherein the joint of the first sleeve portion and the second sleeve portion is sleeved with the pipe body to be fixed in a pressing manner.

Preferably, the protective sheath of the medical device further includes a tube body, and the tube body is inserted into the first sleeve portion and penetrates through the wall surface of the first sleeve portion to penetrate out of the first sleeve portion.

Preferably, the protective sleeve of the medical device, wherein a protruding point protrudes from the wall surface of the first sleeve part.

Preferably, the protective sheath of the medical device further includes two fixing rings respectively coupled to the periphery of the opening of the first sleeve portion and the periphery of the opening of the second sleeve portion, the two fixing rings are made of an elastic material, and the shapes of the two fixing rings correspond to the peripheral contour of the medical device for sheathing.

Preferably, the protective sheath of the medical device further includes an auxiliary tube, which is inserted into the first sleeve portion of the protective sheath body and supports the first sleeve portion.

Preferably, the protective sheath of the medical device, wherein the auxiliary tube comprises a paper roll, which is inserted into the first sleeve portion of the protective sheath body and stretches the first sleeve portion; the paper roll is formed by spirally winding a long paper strip, and one end of the long paper strip, which is positioned at the innermost side of the spiral shape, penetrates through the first sleeve part.

Preferably, the protective sleeve of the medical device, wherein the auxiliary tube further comprises a wire body wound around and fixed outside the paper roll and spirally wound on an outer wall surface of the long paper strip along with the long paper strip of the paper roll.

Preferably, the method for installing the protective sheath of the medical instrument, wherein after the second sheath part is folded back and covered and attached to the outside of the first sheath part, water is pumped into the protective sheath body, and the protective sheath body is expanded.

Preferably, the method for installing the protective sheath of the medical device further includes preparing a tube, wherein the tube is inserted into the first sheath portion of the protective sheath body; and after the second sleeve part is reversely folded and coated to be attached to the outside of the first sleeve part, water is pumped between the medical instrument and the first sleeve part from the pipe body.

Preferably, in the method for installing the protective sheath of the medical device, after the second sheath portion is folded back and covered to be attached to the outside of the first sheath portion, the protective sheath body is evacuated, and the protective sheath body is tightly attached to the outside of the medical device.

Preferably, the method for installing the protective sheath of the medical device further includes preparing a tube, wherein the tube is inserted into the first sheath portion of the protective sheath body; and after the second sleeve part is reversely folded and coated and attached to the outside of the first sleeve part, air is pumped between the medical instrument and the first sleeve part from the pipe body.

Preferably, before the second sleeve part is folded back and tensioned, the joint of the first sleeve part and the second sleeve part is moved to the outside of one end face of the medical device, and then the second sleeve part is folded back and sleeved outside the first sleeve part.

Preferably, the method for installing the protective sheath of the medical device further includes preparing two fixing rings respectively coupled to the periphery of the opening of the first sheath portion and the periphery of the opening of the second sheath portion, wherein the two fixing rings are made of an elastic material and have a shape corresponding to the peripheral contour of the medical device to be installed; when the first sleeve part of the protective sleeve body is sleeved outside the medical instrument, the fixing ring on the first sleeve part is sleeved and clamped on the medical instrument; when the first sleeve part of the protective sleeve body is sleeved outside the second sleeve part, the fixing ring on the second sleeve part is sleeved and clamped on the medical instrument in the first sleeve part.

Preferably, the laryngeal mask further comprises a tube body penetrating through the reverse-folding portion and penetrating between the reverse-folding portion and the covering portion.

Preferably, the laryngeal mask has a protruding point protruding from the reverse-folded portion, and the tube body penetrates through the protruding point and is inserted between the reverse-folded portion and the covering portion.

Preferably, the laryngeal mask, wherein the second sleeve portion is folded back towards the first sleeve portion and is sleeved outside the folded-back portion of the first sleeve portion.

Preferably, the laryngeal mask further comprises a tube body penetrating through the second sleeve part and the reverse-folding part and penetrating between the reverse-folding part and the coating part; a salient point protrudes from the second sleeve part, and the pipe body penetrates through the salient point.

Preferably, the method for assembling the laryngeal mask further includes preparing a tube, wherein the tube penetrates through the reverse-folded portion and penetrates between the reverse-folded portion and the covering portion, and inflating a space between the reverse-folded portion and the covering portion through the tube.

Preferably, in the assembling method of the laryngeal mask, after the first sleeve portion is folded back, the second sleeve portion is folded back towards the first sleeve portion and is sleeved outside the folded-back portion of the first sleeve portion.

Drawings

FIG. 1 is an exploded view of the elements of a first embodiment of the protective sheath of the present invention.

Figure 2 is a side sectional view of a first embodiment of the protective sheath of the present invention.

Figure 3 is an end sectional view of a first embodiment of the protective sheath of the present invention.

Figure 4 is a perspective view of a second embodiment of the protective sheath of the present invention.

Fig. 5 and 6 are schematic side-view illustrations of a second embodiment of the protective sheath of the present invention.

Fig. 7 to 11 are schematic views showing the operation of the first embodiment of the method for installing a protective cover of the present invention.

Fig. 12 to 14 are schematic views showing the operation of the second embodiment of the method for installing a protective cover of the present invention.

Fig. 15 is a perspective view of the ventilation tube and the flared portion of the laryngeal mask of the present invention.

Fig. 16 to 21 are operation diagrams of the method of assembling the laryngeal mask of the present invention.

Detailed Description

The technical means adopted by the invention to achieve the preset purpose are further described below by combining the accompanying drawings and the preferred embodiment of the invention.

Referring to fig. 1 to 3, the protective sheath of the medical device of the present invention includes a protective sheath body 10, and the protective sheath body 10 can be used alone to sheath a medical device, but can also be used together with other elements to increase its function, for example, in this embodiment, the protective sheath of the medical device further includes a tube 20 and two fixing rings 30.

The protective sheath body 10 is made of an elastic material, specifically, a material having high toughness and high ductility, so as to ensure a certain deformation amount and be not easily broken, and in the present embodiment, is made of a material that is not light-shielding and not refracted, so that when used in a medical device such as an ultrasonic probe, the ultrasonic imaging can be prevented from being hindered; furthermore, the protective sheath body 10 can be made of a softer material, so that the surface tension can be reduced to be attached to the medical instrument, and air is prevented from easily entering between the medical instrument and the protective sheath body 10.

The protective sleeve body 10 comprises a first sleeve part 11 and a second sleeve part 12, wherein one end of the first sleeve part 11 is connected with one end of the second sleeve part 12; the other end of the first sleeve part 11 opposite to the second sleeve part 12 is an opening, and the area of the opening of the first sleeve part 11 is smaller than the area of the medical device 50 (as shown in fig. 7) for sleeving, thereby ensuring that the medical device can be closely wrapped outside; the second sleeve part 12 is an opening opposite to the other end of the first sleeve part 11, and the area of the opening of the second sleeve part 12 is also smaller than the area of the medical appliance for sheathing, so as to ensure that the medical appliance can be tightly wrapped outside the medical appliance.

In the present embodiment, both the two sets of cylindrical portions 11, 12 are formed in a substantially trumpet shape, that is, the two sets of cylindrical portions 11, 12 are slightly expanded from the joint of the two sets of cylindrical portions 11, 12 toward the respective openings, but the present invention is not limited thereto.

In the present embodiment, the length of the first sleeve portion 11 is greater than the length of the second sleeve portion 12, and the length here refers to the length along the connecting line direction of the first sleeve portion 11 and the second sleeve portion 12; and the inner diameter of the first sleeve part 11 is the same as the inner diameter of the second sleeve part 12; however, the length and the inner diameter are not limited to these, and the two sleeve portions 11 and 12 may have the same length, or the inner diameter of the first sleeve portion 11 may be larger or smaller than the inner diameter of the second sleeve portion 12.

In the present embodiment, at least one connecting ring rib 13, and preferably two connecting ring ribs 13 arranged at intervals, are formed around the outer wall surface of the joint between the first sleeve part 11 and the second sleeve part 12 in a protruding manner, so that the structural strength of the joint between the first sleeve part 11 and the second sleeve part 12 can be enhanced, and particularly, when the protective sleeve body 10 is used, the second sleeve part 12 performs actions such as reverse folding, and therefore, the structural strength of the joint between the two sleeve parts 11 and 12 is also important; in addition, by providing two connecting ring ribs 13 spaced apart from each other, a wire body 15 or the like can be wound between the two connecting ring ribs 13, thereby having a function of fixing the position of the wire body 15 (see fig. 7).

In the present embodiment, the outer wall surface of the first sleeve portion 11 is formed with at least one first ring rib 111, and preferably one first ring rib 111, around the protruding part, the first ring rib 111 is adjacent to the opening of the first sleeve portion 11; at least one second ring rib 121, preferably two second ring ribs 121 arranged at intervals, is formed on the outer wall surface of the second sleeve part 12 in a surrounding and protruding mode, and the two second ring ribs 121 are adjacent to the opening of the second sleeve part 12; the first ring rib 111 and the second ring rib 121 have the function of strengthening the structural strength of the opening to ensure that the sleeve can be tightened and pressed on the medical instrument or other objects, so that a closed environment is formed between the protective sleeve body 10 and the medical instrument to prevent air from entering and the like.

In the present embodiment, a plurality of first inner long ribs 112 are formed to protrude from the inner wall surface of the first sleeve portion 11, a plurality of first outer long ribs 113 are formed to protrude from the outer wall surface of the first sleeve portion 11, and the extending direction of the first inner long ribs 112 and the first outer long ribs 113 is parallel to the line connecting the two sleeve portions 11 and 12; furthermore, a plurality of second inner long ribs 122 are formed on the inner wall surface of the second sleeve part 12 in a protruding manner, a plurality of second outer long ribs 123 are formed on the outer wall surface of the second sleeve part 12 in a protruding manner, and the extending directions of the second inner long ribs 122 and the second outer long ribs 123 are parallel to the connecting line of the two sleeve parts 11 and 12; by providing the inner ribs 112, 122 and the outer ribs 113, 123, the extensibility of the sleeve body 10 can be greatly increased, allowing it to be stretched longer.

Further, in the present embodiment, the wall thickness of the first sleeve portion 11 increases from the joint of the two sleeve portions 11, 12 toward the opening of the first sleeve portion 11, and the wall thickness of the second sleeve portion 12 increases from the joint of the two sleeve portions 11, 12 toward the opening of the second sleeve portion 12, which also contributes to improving the ductility of the jacket body 10, making it possible to stretch it wider and longer, and also ensures effective adhesion of the opening peripheries of the two sleeve portions 11, 12 to the medical instrument, thereby forming a closed environment to avoid air from entering, and the like.

In the embodiment, a convex point 114 protrudes from the wall surface of the first sleeve part 11, a convex point 124 also protrudes from the wall surface of the second sleeve part 12, the two convex points 114 and 124 can protrude from the inner wall surface or the outer wall surface of the sleeve part according to circumstances, and the convex points 114 and 124 are used for penetrating other objects when the other objects penetrate through the sleeve part, so that the volume of the penetrated part is increased to strengthen the structure, and further, the penetrated part is prevented from being split after being stretched because the wall thickness is too thin; specifically, the protruding points 114 and 124 can be penetrated by a needle or the like of the tube or the syringe, but are not limited to the tube or the syringe; further, the projections 114, 124 may be formed only on the first sleeve portion 11 or the second sleeve portion 12 as the case may be.

In the present embodiment, a passage 14 is formed at the joint of the first sleeve part 11 and the second sleeve part 12, the passage 14 communicates with the inner space of the two sleeve parts 11, 12, and other objects can pass through the passage 14, or the two sleeve parts 11, 12 can be simultaneously sleeved on other objects, thereby increasing the versatility of the protective sleeve body 10; however, the present invention is not limited to this, and the two sets of cylindrical portions 11 and 12 may be changed to be not connected to each other as the case may be. In the present embodiment, the joint and the passage 14 of the two sleeve portions 11 and 12 are offset from the center of the first sleeve portion 11 and the center of the second sleeve portion 12 (as shown in fig. 2 and 3), but not limited thereto, and may be located at the center.

The tube 20 and the sheath body 10 can be used in various ways, such as penetrating the wall of the sheath body 10, or penetrating the channel 14 of the sheath body 10; in the present embodiment, the pipe body 20 is inserted into the second sleeve portion 12 from the opening of the second sleeve portion 12 and inserted into the first sleeve portion 11 after passing through the passage 14 of the sheath body 10, and this installation is performed in such a manner that one end of the pipe body 20 can be finally communicated between the medical instrument and the first sleeve portion 11, so as to facilitate various operations, such as water pumping, air suction, etc., at this location, and therefore the installation position of the pipe body 20 is not limited thereto, and the installation position of the pipe body 20 can be changed to finally communicate one end of the pipe body 20 between the two sleeve portions 11, 12, and so on.

Or, the pipe 20 can be inserted into the first sleeve portion 11 and then inserted through the protruding point 114 of the first sleeve portion 11 to penetrate out of the first sleeve portion 11, so that when the first sleeve portion 11 is folded back by itself, one end of the pipe 20 is connected to a space (as shown in fig. 18) formed by folding back the first sleeve portion 11; in short, the tube 20 and the sheath body 10 can be used in different ways according to the use situation.

In addition, when the tube 20 penetrates through the passage 14 of the sheath body 10, the joint of the two sleeve portions 11, 12 can further be sleeved with a tight fixed tube 20 to fix the relative position of the tube 20 and the sheath body 10; specifically, the tube 20 can be tightened by winding the wire 15 (as shown in fig. 7), or by tightening a device such as a belt.

In addition, the other end of the tube 20 opposite to the protective sheath 10 can be provided with a check valve 21, specifically, a ball check valve, and the check valve 21 can only be opened or closed, thereby avoiding water leakage or air leakage when the tube 20 is used for air inflation, water inflation or air suction.

In the present embodiment, the fixing ring 30 is disposed inside the periphery of the opening and is respectively pressed and fixed by the first sleeve portion 11 and the second sleeve portion 12, for example, by a wire or a band, but not limited thereto, and may be fixed by other methods, or may be disposed at other positions adjacent to the opening instead of being disposed in the sleeve portion; further, when the fixing ring 30 is disposed inside the opening periphery, the first ring rib 111 and the second ring rib 121 on the two sleeve portions 11 and 12 also contribute to the fastening of the fixing ring 30, and the two second ring ribs 121 disposed at an interval also contribute to the winding of the wire body or the like, and further, the fixing ring 30 is fastened by the wire body.

The two fixing rings 30 are made of elastic materials, and the shapes of the two fixing rings 30 correspond to the peripheral outline of the medical instrument for sleeving, so that the openings of the two sets of cylinder portions 11 and 12 can be clamped and fixed on the medical instrument, specifically, the two fixing rings 30 are respectively clamped and fixed at two wider places of the medical instrument, but not limited to this, the two fixing rings can also be clamped and fixed at places with special shapes on the medical instrument, or the medical instrument is provided with corresponding structures or shapes to be matched and fixed with the fixing rings 30; in addition, the fixing ring 30 is not limited to be engaged when used, and may be abutted against the medical device by a material or structure with high friction force, so as to achieve the fixing effect.

The fixing ring 30 helps the opening peripheries of the two sets of cylinder portions 11, 12 to be fixed to the medical instrument, and has a function of preventing water and air leakage, and the opening peripheries of the two sets of cylinder portions 11, 12 originally cling to the outer wall surface of the medical instrument and have a certain function of preventing water and air leakage, but the fixing ring 30 can further enhance the above effects. In addition, in order to enhance the anti-slip and anti-leakage functions, an annular groove may be further recessed inside the fixing ring 30 to accommodate an O-ring or other elements.

Referring to fig. 4 to 6, in another embodiment, the protective sheath body 10A may further be provided with an auxiliary tube 40A, one end of the auxiliary tube 40A is inserted into the first sleeve portion 11A of the protective sheath body 10A and props up the first sleeve portion 11A; therefore, when in use, the medical apparatus 50A can directly penetrate through the first sleeve part 11A through the auxiliary pipe 40A, so as to achieve the effect of conveniently installing the protective sleeve body 10A; after the medical device 50A is inserted into the first sleeve part 11A, the protective sleeve body 10A can be directly mounted on the medical device 50A without detaching the auxiliary tube 40A, so that, for example, when an operation is performed, a doctor can directly use the medical device 50A, and when the medical device 50A is half used and other people need to temporarily take the device, a person without brushing hands (hands without sterilization) can also hold the other end of the auxiliary tube 40A and avoid polluting the medical device 50A, and when the doctor needs to use the device again, the person without brushing hands can be handed to the doctor and the doctor can also hold the medical device 50A; therefore, the person without brushing hands can conveniently participate in the operation at a certain distance.

In addition, in the present embodiment, the auxiliary tube 40A includes a paper roll 41A and a string 42A, the paper roll 41A is inserted into the first sleeve portion 11A of the protective sleeve body 10A, the paper roll 41A is formed by spirally winding a long paper strip, and one end (i.e. the end with the smallest inner diameter) of the long paper strip located at the innermost side of the spiral shape is inserted into the first sleeve portion 11A; therefore, when in use, the inner diameter of the paper roll 41A can be reduced by rolling the paper roll 41A, so that the expanded first sleeve part 11A recovers the inner diameter and is gradually attached to the medical instrument 50A; further, the inner diameter can be changed by rolling the paper roll 41A, and thus can be applied to different sizes of medical instruments 50A; in addition, the wire 42A is wound and fixed outside the paper roll 41A, and is wound on the outer wall surface of the long paper strip along with the long paper strip of the paper roll 41A, so that the wire 42A can be pulled to perform the above-mentioned rolling and shrinking of the paper roll 41A, and finally, the wire 42A can be directly wound outside the first sleeve part 11A to enable the first sleeve part 11A to be tightly sleeved with the medical device 50A, thereby being convenient for use; in the present embodiment, the wire 42A is made of iron wire, but not limited thereto; in addition, when the wire 42A is pulled, the wire 42A drives the paper roll 41A to roll by friction, but not limited to this, a part of the wire 42A may also be adhered to the paper roll 41A.

Referring to fig. 7 to 11, a first embodiment of the method for installing a protective sheath of a medical device according to the present invention comprises the following steps:

referring to fig. 7, a protective sheath body 10 is prepared, the protective sheath body 10 is made of elastic material and includes a first sleeve portion 11 and a second sleeve portion 12, one end of the first sleeve portion 11 is connected to one end of the second sleeve portion 12, the other end of the first sleeve portion 11 opposite to the second sleeve portion 12 is an opening, and the other end of the second sleeve portion 12 opposite to the first sleeve portion 11 is an opening; in the present embodiment, the protective sheath body 10 is similar to the above, a tube 20 is inserted into the second sleeve portion 12 from the opening of the second sleeve portion 12, and after passing through the passage 14 of the protective sheath body 10, the tube 20 is inserted into the first sleeve portion 11, and a wire 15 is wound around the joint of the two sleeve portions 11, 12 to tightly fix the tube 20, but not limited thereto; the structure of the protective sheath body 10 and the related elements of the installation method of the present invention may be completely the same as the structure of the protective sheath body 10 and the related elements of the protective sheath of the medical device, but not limited thereto, and may be different.

Referring to fig. 8, after the first sleeve portion 11 of the sheath body 10 and the fixing ring 30 are pulled and stretched, the sheath is sleeved outside a medical device 50, and the shape of the fixing ring 30 corresponds to the peripheral contour of a predetermined fastening portion (a wider portion, a special portion or a portion with a matched shape, etc.) of the medical device 50, so that the fixing ring 30 is fastened on the medical device 50; in the first embodiment, the medical device 50 is an ultrasonic probe, but the invention is not limited thereto, and can be applied to various medical devices such as a laryngoscope, an enteroscope, an endoscope, or a laryngeal mask; the hand is then released and the first sleeve portion 11 is allowed to recover its volume and wrap against the outside of the medical device 50 (fig. 8 is only schematically shown).

Referring to fig. 9, the second sleeve portion 12 is pulled to move the joint of the two sleeve portions 11 and 12 out of the end face 51 of the medical instrument 50, in this embodiment, the joint of the two sleeve portions 11 and 12 is moved out of the irradiation range of the ultrasonic probe, so as to prevent the joint of the two sleeve portions 11 and 12 from affecting the imaging of the ultrasonic wave, and therefore, the end face 51 of the medical instrument 50 is moved to a position where the joint of the two sleeve portions 11 and 12 does not affect the use of the medical instrument 50, specifically, the joint may be moved to a position where the end face 51 of the medical instrument 50 is not covered or even moved to the side of the medical instrument 50 (as shown in fig. 9). In addition, please refer to fig. 3. In the present embodiment, since the joint of the two sets of cylindrical portions 11 and 12 and the passage 14 are offset from the center of the two sets of cylindrical portions 11 and 12, it is more convenient to move the joint of the two sets of cylindrical portions 11 and 12 and the passage 14 to the outside of the end surface 51 of the medical instrument 50.

Referring to fig. 10, after the second sleeve portion 12 and the fixing ring 30 are folded back and stretched, the second sleeve portion 12 is sleeved outside the first sleeve portion 11, the second sleeve portion 12 is restored to its volume and covers and abuts the first sleeve portion 11 (fig. 10 is only schematically shown), and the fixing ring 30 is sleeved and engaged at another wider position (or a position with a special shape or a shape matching, etc., fig. 10 is only schematically shown) on the medical device 50.

Referring to fig. 11, finally, water is pumped between the medical instrument 50 and the first sleeve part 11 through the check valve 21 and the pipe body 20, and the two sleeve parts 11 and 12 are expanded accordingly; therefore, air can not be left between the ultrasonic probe and the first sleeve part 11 to avoid influencing ultrasonic imaging, and the second sleeve part 12 is pushed and spread by the expanded first sleeve part 11, so that air can not exist between the two sleeve parts 11 and 12 (only schematically shown in fig. 11); in addition, the water can further diffuse the image of the ultrasonic probe, thereby increasing the irradiation range; the second sleeve part 12 is further coated outside the first sleeve part 11 which is covered with water, so that double-layer protection can be achieved, and even if the second sleeve part 12 of the outer layer is broken due to various reasons, the first sleeve part 11 of the inner layer can protect medical appliances and avoid water leakage and the like. The present first embodiment can be applied to various medical instruments that cannot have an air barrier, in addition to the ultrasonic probe.

In addition, the installation method of the present invention is not limited to the above, for example, the water may be injected not through the tube 20 but through the puncture of the syringe; in addition, the water fetching position can be changed between the two sets of the cylinder parts 11 and 12, so that the water can be prevented from directly contacting the medical apparatus, and the water fetching device is suitable for the medical apparatus which is not suitable for contacting water for a long time and the like; further, by inflating the interior of the sleeve body 10 by pumping water, it is possible to confirm whether or not the two sets of tubular portions 11 and 12 have broken.

Referring to fig. 12 to 14, a second embodiment of the method for installing a protective sheath of a medical device according to the present invention is substantially the same as the first embodiment, except that the medical device 50B covered by the second embodiment is a laryngoscope, and the laryngoscope generally has a curved section 52B, so that when the first sleeve part 11B is covered and attached to the laryngoscope, the first sleeve part 11B may be pulled by the curved section 52B to form a space, and in this second embodiment, finally, air is drawn from between the medical device 50B and the first sleeve part 11B through the one-way valve 21B and the tube 20B, so that the first sleeve part 11B and the second sleeve part 12B together follow the shape of the medical device 50B and are pressed to be attached to the outside of the medical device 50B.

The installation method of the invention is not limited to the above, for example, the air extraction position can be changed between the two sets of the cylinder parts 11B and 12B, thereby achieving the same effect; further, by evacuating the interior of the protector body 10B, it is similarly possible to confirm whether or not the two sets of tube portions 11B, 12B have broken. In addition to laryngoscopes, this second embodiment can be used with medical devices that are relatively special in shape and difficult to wrap snugly.

The invention has the advantages that the double-layer protection effect can be achieved only by simple operation (the first sleeve part 11 is sleeved and then the second sleeve part 12 is reversely folded and sleeved once again), and the medical instrument is prevented from being polluted; moreover, double-layer protection can be achieved only by a single article, so that the operation and the use are convenient; furthermore, the two sleeve portions 11 and 12 made of elastic material and having smaller inner diameters are sleeved outside the medical instrument 50 in a stretching manner, so that a fitting effect can be achieved, and the second sleeve portion 12 is folded back and then sleeved outside the first sleeve portion 11, so that the first sleeve portion 11 can be pressed to be tightly attached to the medical instrument 50, and therefore, the tightness between the protective sleeve body 10 and the medical instrument 50 is ensured, the use of the medical instrument is prevented from being influenced, gas is prevented from entering between the medical instrument 50 and the protective sleeve body 10, and the like; the invention is convenient to use, effectively improves the safety and the tightness and can greatly reduce the cost.

In addition, in a specific situation, the two sets of cylinders 11, 12 of the protective sheath body 10 may be pre-coated or a separating agent, such as silicone oil, may be injected after the sleeve is installed, so as to prevent the two sets of cylinders 11, 12 from sticking to each other or reduce the friction between the two sets of cylinders 11, 12, thereby facilitating the removal of the protective sheath body 10 from the medical instrument.

The method for installing the protective sleeve of the medical instrument is not limited to the two embodiments, for example, the protective sleeve can be inflated instead of pumping water and pumping air, or even be sleeved outside the medical instrument without being matched with the fixing ring and the tube body, so that the effects can be achieved.

Referring to fig. 19, the laryngeal mask of the present invention includes an inlet tube 60C, an outward expanding portion 70C, a protective sleeve body 10C, a reverse folding ring 80C and a tube 20C.

The aforementioned flared portion 70C is provided at one end of the intake pipe 60C, and in the present embodiment, the flared portion 70C and the intake pipe 60C are integrally formed, but not limited thereto; the outward expansion portion 70C is formed with a vent hole 71C communicating with the intake pipe 60C; the flaring portion 70C and the inlet tube 60C are components of a conventional laryngeal mask, and therefore, the structure thereof will not be described herein.

The protective sleeve body 10C is sleeved outside the air inlet pipe 60C and the outward-expanding portion 70C, the protective sleeve body 10C is made of an elastic material and includes a first sleeve portion 11C and a second sleeve portion 12C, one end of the first sleeve portion 11C is connected with one end of the second sleeve portion 12C, and the other end of the first sleeve portion 11C opposite to the second sleeve portion 12C is an opening; a passage 14C is formed at the joint of the first sleeve part 11C and the second sleeve part 12C in a penetrating manner, and the passage 14C is communicated with the inner spaces of the two sleeve parts 11C and 12C and sleeved outside the air inlet pipe 60C; in the present embodiment, the joint between the two sets of cylindrical portions 11C and 12C is fixed to the outside of the air inlet pipe 60C by being sleeved and pressed to fix the relative position of the air inlet pipe 60C and the protector body 10C; specifically, the air inlet tube 60C may be tightly fixed by winding the wire 15C, or may be tightly fixed by using a device such as a belt.

The reverse folding ring 80C is sleeved outside the first sleeve part 11C of the protective sleeve body 10C, the first sleeve part 11C is reversely folded along the reverse folding ring 80C and is divided into a covering part 115C and a reverse folding part 116C by taking the reverse folding ring 80C as a boundary, and the covering part 115C is connected with the second sleeve part 12C; the covering portion 115C is covered and covered outside the outward expanding portion 70C, the reverse folding portion 116C is covered and covered outside the covering portion 115C, in this embodiment, a strap 15C and a wire 16C are wound at the connection position of the two sets of tube portions 11C, 12C to tightly fix the air inlet tube 60C, and in this embodiment, a first groove 72C is circumferentially arranged on the outward expanding portion 70C to tightly fix the strap 15C, and a second groove 61C is circumferentially arranged at the junction of the air inlet tube 60C and the outward expanding portion 70C to tightly fix the wire 16C, so as to fix the protective cover body 10C, the air inlet tube 60C and the outward expanding portion 70C;

the reverse folding ring 80C is located outside the vent hole 71C of the flared portion 70C, i.e., the reverse folding portion of the first sleeve portion 11C is located outside the vent hole 71C. In the present embodiment, the reverse folding ring 80C is a bundle of tapes, but not limited thereto, and may be a bundle of wires wound around the first sleeve portion 11C so long as the first sleeve portion can be reversely folded.

The tube body 20C penetrates through the reverse folding portion 116C and is inserted between the reverse folding portion 116C and the covering portion 115C; in the present embodiment, the protruding point 114C on the first sleeve portion 11C is located on the folded back portion 116C, and the pipe body 20C is inserted through the protruding point 114C and between the folded back portion 116C and the covering portion 115C.

The second sleeve portion 12C is folded back toward the first sleeve portion 11C and is fitted over the folded back portion 116C of the first sleeve portion 11C, and the tubular body 20C extends from between the second sleeve portion 12C and the folded back portion 116C.

The laryngeal mask of the present invention can be in an uninflated state before use as shown in fig. 19, and when it is desired to use it, the balloon can be formed by inflating between the inflected section 116C and the wrapped section 115C through the tube 20C as shown in fig. 20.

The structure of the protective sheath body 10C and the related elements of the laryngeal mask of the present invention may be completely the same as the structure of the protective sheath body 10 and the related elements of the protective sheath of the medical device, but not limited thereto, and may be different.

Referring to fig. 15 to 20, the method for assembling the laryngeal mask of the present invention includes the following steps:

referring to fig. 15 and 19, a sheath body 10C, an air inlet pipe 60C, an outward expanding portion 70C, a reverse folding ring 80C and a pipe 20C are prepared; the protective sleeve body 10C is made of elastic material and includes a first sleeve portion 11C and a second sleeve portion 12C, one end of the first sleeve portion 11C is connected with one end of the second sleeve portion 12C, the other end of the first sleeve portion 11C opposite to the second sleeve portion 12C is an opening, and the other end of the second sleeve portion 12C opposite to the first sleeve portion 11C is an opening; the outward expansion part 70C is arranged at one end of the air inlet pipe 60C, and the outward expansion part 70C is provided with a vent hole 71C communicated with the air inlet pipe 60C in a forming way; in the present embodiment, the protective sheath body 10C, the air inlet tube 60C, the outward expanding portion 70C, the reverse folding ring 80C and the tube body 20C have the same structure as the corresponding elements of the laryngeal mask, and therefore, the description thereof is not repeated herein, but the invention is not limited thereto and may be different.

Referring to fig. 16, the sheath body 10C is sleeved outside the air inlet pipe 60C from the other end of the air inlet pipe 60C opposite to the flared portion 70C, and the first sleeve portion 11C is sleeved and wrapped outside the flared portion 70C.

Referring to fig. 17 and 18, a reverse-folding ring 80C is sleeved outside the first sleeve portion 11C, and in the present embodiment, the reverse-folding ring 80C is a belt, but not limited thereto; the first sleeve part 11C is reversely folded along the reverse folding ring 80C, wherein the part of the first sleeve part 11C sleeved on the outward expanding part 70C is a coating part 115C, the part of the first sleeve part 11C reversely folded along the reverse folding ring 80C is a reverse folding part 116C, and after the first sleeve part 11C is reversely folded, the reverse folding part 116C is sleeved on and coated outside the coating part 115C; in addition, in the present embodiment, a tube 20C is inserted through the folded portion 116C and between the folded portion 116C and the covering portion 115C; in addition, the air inlet tube 60C is tightly fixed by winding the strap 15C and the wire 16C around the joint of the two sleeve portions 11C and 12C, and in the present embodiment, a first groove 72C is disposed around the expanded portion 70C for the strap 15C to be sleeved tightly, and a second groove 61C is disposed around the boundary of the air inlet tube 60C and the expanded portion 70C to be sleeved tightly corresponding to the wire 16C, so as to fix the protective sheath body 10C, the air inlet tube 60C and the expanded portion 70C, but both the strap 15C and the wire 16C may be changed into other tools; the positions, modes and timings of fixing the sheath body 10C, the air inlet tube 60C and the flared portion 70C are not limited to the above.

Referring to fig. 19, the second sleeve portion 12C is then folded back toward the first sleeve portion 11C and is sleeved on and wrapped around the folded-back portion 116C of the first sleeve portion 11C.

Referring to fig. 20, finally, the air is pumped between the covering portion 115C and the reverse folding portion 116C of the first sleeve portion 11C through the check valve 21C and the tube 20C to form an air bag.

Referring to fig. 21, in the present embodiment, the second sleeve portion 12C may be further punctured and pulled to allow the tube 20C and the check valve 21C to pass through, so that the tube 20C can pass through one side of the airbag; in addition, specifically, the location where the second sleeve portion 12C punctures and stretches may be located at a raised point on the second sleeve portion 12C, which may increase the volume of the punctured location to strengthen the structure and may effectively tighten against the tubular body 20C. In addition, the above step (passing the tube 20C and the check valve 21C through the second sleeve portion 12C) may be performed before inflating to form the airbag.

The method of assembling the laryngeal mask of the present invention is not limited to the foregoing, and for example, the last second sleeve portion 12C may not be folded back toward the first sleeve portion 11C, or the like, or the tube 20C may not be provided, but may be inflated by other means, or the like; further, by inflating the interior of the jacket main body 10C, it is similarly possible to confirm whether or not the two sets of tube portions 11C, 12C have broken.

When the laryngeal mask is used, only the air pipe sleeve (not shown) is sleeved outside the air inlet pipe 60C, and the protective sleeve body 10C is sleeved outside the air pipe sleeve, so that after the laryngeal mask is used, only the protective sleeve body 10C and the air pipe sleeve which are used as air bags need to be replaced, and the air bag at the position with the most complicated shape on the laryngeal mask is formed by elements such as the disposable protective sleeve body 10C and the like, so that the protective sleeve does not need to be additionally arranged, and the air inlet pipe 60C is only a simple pipe body, so that the air pipe sleeve is quite easy to wrap, and therefore, the elements such as the protective sleeve body 10C and the air pipe sleeve are convenient to replace after the laryngeal mask is used.

Furthermore, the air bag is inflated between the covering portion 115C and the reverse-folding portion 116C of the first sleeve portion 11C, so that the second sleeve portion 12C outside the reverse-folding portion 116C can form a double-layer protection, thereby greatly improving the safety and avoiding air leakage.

Although the present invention has been described with reference to the above embodiments, it should be understood that the present invention is not limited to the above embodiments, but rather, may be embodied in many different forms and modifications without departing from the spirit and scope of the present invention.